Ruby

symbol.c: rename rb_str_dynamic_intern

• iseq.c, marshal.c, string.c: use rb_str_intern instead of
  rb_str_dynamic_intern.
• symbol.c (rb_str_intern): rename rb_str_dynamic_intern.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47912 b2dd03c8-39d4-4d8f-98ff-823fe69b080e